2017-2025
World's most polluted cities | IQAir
The most polluted cities according to data aggregated from over 80,000 data points.
2025
World Air Quality Report
2025
World Air Quality Report
| Rank | City | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
| 6383 |  Spanaway USA | 6.9 | 7.4 | 10.6 | -- | -- | -- | -- | -- | -- |
| 6384 | Toppenish USA | 6.9 | 7.7 | 9.5 | 8.9 | 10.2 | 14.9 | 10 | 10.4 | 13.1 |
| 6385 | Montgomery USA | 6.9 | 6.5 | 4.7 | -- | -- | -- | -- | -- | -- |
| 6386 | West Union USA | 6.9 | 6.4 | -- | -- | -- | -- | -- | -- | -- |
| 6387 | Belgium USA | 6.9 | 5.1 | 9 | 6.8 | 7.4 | 6.6 | 7.1 | -- | -- |
| 6388 |  Tamsweg Austria | 6.8 | 9.9 | 7.4 | 8.1 | 9 | -- | -- | -- | -- |
| 6389 |  Clearwater Canada | 6.8 | 16.7 | -- | -- | -- | -- | -- | -- | -- |
| 6390 | Peachland Canada | 6.8 | 5.2 | 6.1 | 1.4 | 21.5 | -- | -- | -- | -- |
| 6391 | Hay River Canada | 6.8 | 9 | 20.6 | -- | -- | -- | -- | -- | -- |
| 6392 | Mont-Blanc Canada | 6.8 | 5.9 | 7.4 | -- | -- | -- | -- | -- | -- |
| 6393 | Pierreville Canada | 6.8 | 6.5 | 9.2 | 7.1 | 7.4 | -- | -- | -- | -- |
| 6394 | Riviere-Rouge Canada | 6.8 | 5.7 | 7.2 | -- | -- | -- | -- | -- | -- |
| 6395 | Maple Creek Canada | 6.8 | 7.7 | -- | -- | -- | -- | -- | -- | -- |
| 6396 |  Sakskøbing Denmark | 6.8 | 6.3 | 9.3 | -- | -- | -- | -- | -- | -- |
| 6397 |  Montargis France | 6.8 | 7 | 8.1 | 9.4 | 9.9 | 7.6 | 8.6 | 9.1 | 9.8 |
| 6398 | Le Robert France | 6.8 | 8.7 | 8.3 | 8 | 9.8 | 8.7 | -- | -- | -- |
| 6399 |  Graben-Neudorf Germany | 6.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 6400 | Nennslingen Germany | 6.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 6401 | Kellerwald Germany | 6.8 | 5.8 | 7.1 | -- | -- | -- | -- | -- | -- |
| 6402 |  Papagou Greece | 6.8 | 8 | 12.8 | 14.6 | 14.5 | 14.2 | 15.5 | -- | -- |
| 6403 | Aktaio Greece | 6.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 6404 |  Naas Ireland | 6.8 | 6.7 | 5.9 | 7 | 7.1 | -- | -- | -- | -- |
| 6405 |  Iglesias Italy | 6.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 6406 |  Otaru Japan | 6.8 | 7.1 | 8.1 | 7 | 6.6 | 5.9 | 9.2 | 8.7 | 8.3 |
| 6407 | Nasushiobara Japan | 6.8 | 5.9 | 6.1 | 6.7 | 6.3 | 7.2 | 8.3 | 8.5 | 8.6 |
| 6408 | Oyabe Japan | 6.8 | 5.9 | 6.5 | 6.2 | 6.7 | 7.5 | 8.8 | 9.4 | 8.9 |
| 6409 |  Cabo San Lucas Mexico | 6.8 | 8.5 | 7.9 | 7.6 | 7.9 | -- | -- | -- | -- |
| 6410 |  Taumarunui New Zealand | 6.8 | 10.4 | 8.7 | 6.8 | -- | -- | -- | -- | -- |
| 6411 |  Sjolyststranda Norway | 6.8 | 8.2 | 7.4 | -- | -- | -- | -- | -- | -- |
| 6412 | Skien Norway | 6.8 | 7.8 | 7.1 | -- | -- | -- | -- | -- | -- |
| 6413 |  Bagua Peru | 6.8 | 16.1 | -- | -- | -- | -- | -- | -- | -- |
| 6414 |  Poprad Slovakia | 6.8 | 8.1 | 8 | 6 | 8.3 | 9.5 | 11.2 | -- | -- |
| 6415 |  Alonsotegi Spain | 6.8 | 6.3 | 6.4 | 10.9 | 2.3 | -- | -- | -- | -- |
| 6416 | Berga Spain | 6.8 | 5.7 | -- | -- | -- | -- | -- | -- | -- |
| 6417 | Tudela Spain | 6.8 | 6.4 | 7.3 | 8.8 | 7.6 | 8.4 | 7.3 | -- | -- |
| 6418 | El Grao de Castellon Spain | 6.8 | 5.5 | 5 | 11 | 15.8 | -- | -- | -- | -- |
| 6419 |  Rhaezuens Switzerland | 6.8 | 18.7 | 7.2 | 10.8 | 10.7 | -- | -- | -- | -- |
| 6420 |  Carlisle United Kingdom | 6.8 | 8.1 | 7.8 | -- | -- | -- | -- | -- | -- |
| 6421 | Heath Charnock United Kingdom | 6.8 | 6.3 | 7.9 | -- | -- | -- | -- | -- | -- |
| 6422 | Heavitree United Kingdom | 6.8 | -- | -- | -- | -- | -- | -- | -- | -- |
| 6423 | Horley United Kingdom | 6.8 | 6.8 | -- | -- | -- | -- | -- | -- | -- |
| 6424 | Dyserth United Kingdom | 6.8 | 5.6 | 6.6 | -- | -- | -- | -- | -- | -- |
| 6425 | Apple Valley USA | 6.8 | 7.5 | 6.8 | 5.9 | 7.6 | 9.9 | 7 | -- | -- |
| 6426 | Bass Lake USA | 6.8 | 7.8 | 7.9 | 6.8 | 17.6 | -- | -- | -- | -- |
| 6427 | Coachella USA | 6.8 | 7.6 | 8.2 | 7.7 | 10.2 | -- | -- | -- | -- |
| 6428 | Coffee Creek USA | 6.8 | 6.8 | 7 | 5.1 | -- | -- | -- | -- | -- |
| 6429 | Downieville USA | 6.8 | 7.1 | 12.1 | 11.9 | 13.8 | -- | -- | -- | -- |
| 6430 | Indian Wells USA | 6.8 | 8.1 | -- | -- | -- | -- | -- | -- | -- |
| 6431 | Lemon Grove USA | 6.8 | 7.4 | 9.4 | 10.4 | 13.8 | -- | -- | -- | -- |
| 6433 | Newport Beach USA | 6.8 | 6.6 | 8 | 8.9 | 11.3 | 13 | 10.2 | -- | -- |
